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Oxycodone Concentration in Blood (Mass Concentration)

Published: August 9, 2026Updated: August 16, 2026

This test measures the amount of oxycodone, a prescription opioid pain medication, in your blood. It helps doctors assess drug levels for treatment monitoring or legal/forensic purposes.

Quick summary

["Understanding your oxycodone blood level can guide treatment adjustments or rule out misuse."]

Medically reviewed by WellAlly Editorial TeamLast reviewed August 16, 2026Editorial policy

Key facts at a glance

LOINC
72402-1
Short code
oxyCODONE Bld Ql Scn
Synonyms
oxyCODONE Bld Ql Scn
Category
chemistry
Sample
whole-blood
Container
Lavender-top (EDTA)
Units
N/A
Fasting
false
Population
adult
Sex
all
Age range
18–65 years
Method
screen
Specimen volume
3 mL
Stability
Room temperature: 4h, Refrigerated: 24h
Hemolysis max
0
Lipemia max
0
Icterus max
0
TAT
4–24 hours
Order
routine

Why This Test Is Done

Your doctor may order this test if you’re prescribed oxycodone to monitor your dose, check for proper metabolism, or investigate symptoms like confusion, slow breathing, or unusual behavior that might suggest overdose or drug interactions.

What to Expect Before the Test

No special preparation is needed. You’ll have a small needle inserted into your arm or vein to draw blood. If you’re on blood thinners, let your doctor know beforehand.

What the Results Mean

Results show the amount of oxycodone in your blood at the time of testing. Higher-than-expected levels may indicate improper dosing, drug misuse, or interactions with other medications.

Common Uses and Limitations

This test is most useful for monitoring prescribed oxycodone use but isn’t a definitive test for drug abuse. Levels alone don’t diagnose addiction or explain behavior—your doctor will consider the full clinical picture.

Clinical interpretation

How abnormal results are interpreted and what conditions they suggest.

High levels may signal overdose risks, while low levels could mean insufficient pain relief. Doctors use these results to adjust doses, detect toxicity, or investigate unexplained symptoms. However, results alone don’t determine safety—your overall health and symptoms are also critical.

Short name

Oxycodone Blood Level

Frequently asked questions

What does a normal range mean for this test?
There’s no single ‘normal’ range for oxycodone levels because they vary based on dose, metabolism, and individual factors. Your doctor will compare your result to your prescribed dose and clinical needs.
Can I eat or drink before this test?
You can eat and drink normally unless your doctor specifies otherwise. Some tests require fasting, but this one does not.
Will this test affect my medication?
Oxycodone blood levels are measured to monitor your prescribed dose. If you’re taking other medications, tell your doctor—some drugs may interact with opioids, affecting how your body processes them.
  1. 1
    MedlinePlus — Laboratory TestsSource
  2. 2
    Lab Tests OnlineSource
  3. 3
    Mayo Clinic — Tests & ProceduresSource

Click any link to access the full source. PubMed Central (PMC) links provide free full-text access.

This information is for educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment.

Medical Disclaimer

This content is for general informational and educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment. Always seek the guidance of a qualified healthcare provider with any questions you have about a medical condition, and never disregard professional medical advice or delay seeking it because of something you read here.

If you think you may have a medical emergency, call your local emergency number or go to the nearest emergency department immediately.

Medically reviewed by WellAlly Editorial Team Last reviewed August 16, 2026. · Read our editorial policy